An event raised upon IsContentField(ISearchIndexInfo, SearchSettingsInfo) execution. Based on the Result the field is added to content fields. By default, all fields having flag named CONTENT set to true are considered content fields.

An event raised upon IsIndexField(ISearchIndexInfo, SearchSettingsInfo) execution. Based on the Result the field is added to index fields. By default, all fields having flag named SEARCHABLE set to true are added.

An event raised upon IsTriggerField(SearchSettingsInfo) execution. Based on the Result the change of this field triggers index update. By default, all fields having flag named INDEX_UPDATE_TRIGGER triggers index update. For backward compatibility if the flag is not present fallback is used and returns true if field is Content or Searchable field.